Remote pericardial hemostasis for ventricular access and reconstruction or other organ therapies

Abstract

Embodiments described herein provide devices, systems, and methods that reduce the distance between two locations in tissue, often for treatment of congestive heart failure. For example, an anchor of an implant system may, when the implant system is fully deployed, reside within the right ventricle in engagement with the ventricular septum. The anchor may be deployed into the heart through a working lumen of a minimally invasive access tool. The minimally invasive access tool may have a plurality of grippers near a distal end of the working lumen. The grippers may engage epicardial tissue of the heart and may be moved radially inwardly relative so as to provide stabilization of the epicardial tissue and/or hemostasis near an access site where the anchor is inserted through the epicardium. The minimally invasive access tool may minimize blood loss from the access site and improve anchor implant processes.

Description

CROSS-REFERENCES TO RELATED APPLICATIONS[0001]This application is related to and claims the benefit of U.S. Provisional Patent Application No. 61 / 541,975 entitled “Remote Pericardial Hemostasis for Ventricular Access and Reconstruction or Other Organ Therapies,” filed Sep. 30, 2011. This application is also related to and claims the benefit of U.S. Provisional Patent Application No. 61 / 541,624 entitled “Trans-Catheter Ventricular Reconstruction Structures, Methods, and Systems for Treatment of Congestive Heart Failure and Other Conditions,” filed Sep. 30, 2011; U.S. Provisional Patent Application No. 61 / 541,980 entitled “Over-The-Wire Cardiac Implant Delivery System for Treatment of CHF and Other Conditions,” filed Sep. 30, 2011; and U.S. Provisional Patent Application No. 61 / 541,978 entitled “Cardiac Implant Migration Inhibiting Systems,” filed Sep. 30, 2011; the full disclosures of which are incorporated herein by reference in their entirety.[0002]The subject matter of this applic...

AI Technical Summary

Benefits of technology

[0018]In another aspect, embodiments of the invention provide a method for accessing tissue within a patient's heart. The method may include providing an elongate tool body, the elongate tool body extending between a proximal end and a distal end and the elongate tool body comprising a working lumen extending between the proximal end and the distal end. The method may also include providing a gripping device, the gripping device being releasably attachable to the elongate tool body to facilitate in performing a medical procedure within a chamber of the heart. The method may further include positioning the elongate t

Problems solved by technology

However, in many cases congestive heart failure may be triggered by a heart attack or myocardial infarction.

Heart attacks can cause scar tissue that interferes with the heart muscle's healthy function, and that scar tissue can progressively replace more and more of the contractile heart tissue.

More specifically, the presence of the scar may lead to a compensatory neuro-hormonal response by the remaining, non-infarcted myocardium leading to progressive dysfunction and worsening failure.

People with heart failure may have difficulty exerting themselves, often becoming short of breath, tired, and the like.

The increased overall volume and higher intracardiac pressures result in congestion in the tissues.

Fluid may also collect in the lungs, interfering w

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